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. 2018 Oct 17;9:2270. doi: 10.3389/fmicb.2018.02270

FIGURE 3.

FIGURE 3

Agar diffusion assay for measuring the antimicrobial activity of IONPs, NP-APTES, NP-TEICO, and non-conjugated teicoplanin versus the two Gram-positive bacteria S. aureus ATCC 6538P (A) and B. subtilis ATCC 6633 (B), and versus the Gram-negative E. coli ATCC 35218 (C).